US7089731B1ExpiredUtility

Rotating motorcycle exhaust pipe

Assignee: PERRY COREYPriority: Jun 8, 2005Filed: Jun 8, 2005Granted: Aug 15, 2006
Est. expiryJun 8, 2025(expired)· nominal 20-yr term from priority
Inventors:Corey Perry
F01N 1/18
66
PatentIndex Score
7
Cited by
18
References
20
Claims

Abstract

A an improvement in a two wheel motor vehicle having an internal combustion motor and a wheel drive mechanism, wherein the motor has an exhaust system connected thereto, includes a) an exhaust system having a first exhaust pipe and a second exhaust pipe with the first exhaust pipe being in a fixed position relative to the internal combustion motor, and the second exhaust being rotatably connected to the first exhaust pipe, and b) an exhaust pipe drive mechanism connected to the second exhaust pipe for rotation of the second exhaust pipe. The pipe drive mechanism may operate off some power source of the vehicle, operate independently of the vehicle power sources, may operate from exiting exhaust gases, ambient wind form motion of the vehicle, or a combination of the foregoing.

Claims

exact text as granted — not AI-modified
1. In a two wheel motor vehicle having an internal combustion motor and a wheel drive mechanism, said internal combustion motor having an exhaust system connected thereto, the improvement which comprises:
 a) said exhaust system having a first exhaust pipe and a second exhaust pipe said first exhaust pipe being in a fixed position relative to said internal combustion motor, said second exhaust pipe being rotatably connected to said first exhaust pipe; and, 
 b) an exhaust pipe drive mechanism connected to said second exhaust pipe for rotation of said second exhaust pipe relative to said first exhaust pipe so as to freely spin about said exhaust pipe when operating to add dynamic and artistic appearance to said motor vehicle, said exhaust pipe drive mechanism being located in a position selected from the group consisting of a) inside said first exhaust pipe, b) on said second exhaust pipe on the outside of said second exhaust pipe, c) adjacent a wheel, and d) connected to and in the vicinity of a motor or motor drive mechanism, said exhaust pipe drive mechanism being connected to said second exhaust pipe for rotation thereof. 
 
   
   
     2. In the device of  claim 1 , the improvement which further includes an annular connector located between said first exhaust pipe and said second exhaust pipe, said annular connector having disparate portions rotatable with respect to one another and having a plurality of bearings located therebetween wherein at least one of said disparate portions is attached to said first exhaust pipe and at least one other of said disparate portions is rotatable relative to said first exhaust pipe. 
   
   
     3. In the device of  claim 2 , the improvement further wherein said bearings are selected from the group consisting of ball bearings and roller bearings. 
   
   
     4. In the device of  claim 2 , the improvement which further includes at least two of said annular connectors. 
   
   
     5. In the device of  claim 1 , the improvement further wherein said exhaust pipe drive mechanism includes a plurality of wind vanes. 
   
   
     6. In the device of  claim 5 , the improvement further wherein said wind vanes are positioned within said first exhaust pipe to be exposed to and are driven by exhaust gases passing through said exhaust pipe. 
   
   
     7. In the device of  claim 5 , the improvement further wherein said wind vanes are positioned on the outside of said second exhaust pipe to be exposed to and driven by ambient air flow against said plurality of wind vanes. 
   
   
     8. In the device of  claim 5 , the improvement further wherein said wind vanes are at least partially positioned on said outside of said second exhaust pipe and adjacent said second exhaust pipe to be exposed to and driven by ambient air flow against said plurality of wind vanes. 
   
   
     9. In the device of  claim 1 , the improvement further wherein said exhaust drive mechanism is a mechanically connected take-off from the device wheel drive mechanism. 
   
   
     10. In the device of  claim 1 , the improvement further wherein said exhaust drive mechanism is a mechanically connected take-off from the motor. 
   
   
     11. In the device of  claim 1 , the improvement further wherein said exhaust drive mechanism is an independent electric motor with its own battery and its own connecting components. 
   
   
     12. In the device of  claim 1 , the improvement further wherein said motor vehicle includes a conventional battery for starting and operating electric components, and wherein said accessory drive mechanism is an electric motor with connecting components, said electric motor being connected to said battery. 
   
   
     13. In the device of  claim 1 , the improvement which further comprises including at least one visual enhancement connected to said second exhaust pipe that is selected from the group consisting of cut-outs, embossments, outshoots, add-ons and topographical variations. 
   
   
     14. In the device of  claim 13 , the improvement further wherein said visual enhancement is lighting on said second exhaust pipe that rotates with said second exhaust pipe. 
   
   
     15. In the device of  claim 13 , the improvement wherein said visual enhancement is a combination of at least one cut-out and at least one fixed backlight aligned with said at least one cut-out to create a strobe effect when said backlight is on and said second exhaust pipe is rotating. 
   
   
     16. In the device of  claim 1 , the improvement further wherein there are at least two separate second exhaust pipes that rotate independently of one another. 
   
   
     17. In the device of  claim 16 , the improvement further wherein there are at least two separate exhaust pipes that are drive-connected and rotate synchronically with one another. 
   
   
     18. In the device of  claim 1 , the improvement further wherein said exhaust pipe drive mechanism is adjacent a wheel and is a wheel-driven friction drive mechanism. 
   
   
     19. In the device of  claim 1 , the improvement further wherein at least one of said rotating second exhaust pipe and said exhaust pipe drive mechanism has an external housing connected to said first exhaust pipe. 
   
   
     20. In the device of  claim 1 , the improvement further wherein said rotating second exhaust pipe includes a fixed outer housing connected to said exhaust pipe.

Join the waitlist — get patent alerts

Track US7089731B1 — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.